document.write( "Question 29256: A freight train leaves Kansas and travels due west. A passenger train departs at exactly the same time on a parallel track and travels due east at a speed that is twice the speed of the freight train. After 7 hours the trains are 945 miles apart. How fast is each train traveling? \n" ); document.write( "
Algebra.Com's Answer #16082 by Paul(988)![]() ![]() ![]() You can put this solution on YOUR website! Passegner's train speed = 2x \n" ); document.write( "Fireight train's speed =x \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Equation: \n" ); document.write( "7(x+2x)=945 \n" ); document.write( "21x=945 \n" ); document.write( "x=45\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2(45)=90\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Hence, the speed of the freight train is 45mph and the speed of the passenger train is 90mph. \n" ); document.write( "Paul. \n" ); document.write( " |